Type-writing machine.



N0 67!,773. Patented Apr. 9, I90l.

W.. S.- PERRY. R.

TYPE WRITING MACHINE.

(Application filed May1'2, 1900.) f N 0 M o d e l J WITNESSES: INVENTOR;

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A ATTORNEYS UNITED STATES PATENT OFFIQE.

WILLIAM S. PERRY, OF NEWARK, NEW JERSEY.

TYPE-WRlTlNG MACHINE.

SPECIFICATION formingpart of Letters Patent No. 671,773, dated April 9, 1901.

Application filed May 12. 1900. Serial No. 16,401. (No model.)

To all whmn it may concern.

Be it kn own that I,WILLIAM S. PERRY, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvemen ts in Type-Bar and Finger-Key Connections for Type-Writing Machines and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The objects of this invention are to enable a short type-bar to be employed, whereby an alinement of type can be maintained for a longer period and greater lightness of the machine be secured; to secure a lighter or freer action or touch to the keys, whereby the operator may write more quickly and with greater ease; to reduce the cost of construction, and to secure other advantages and results, some of which may be referred to hereinafter in connection with the description of the working parts.

The invention consists in the improved type-bar and finger-key connection for typewriting machines and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth, and finally embraced in the clauses of the claim. Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several views, Figure 1 is a sectionaLview of a portion of a type-writing machine, showing the relation of parts when the type-bar is in engagement with the cylinder or platen. Fig. 2 is a similar view when said bar is raised from said cylinder; and Fig. 3 is a plan of a type-bar segment, showing one set of connections in operative relation thereto. Fig. 4 is a detail section taken at line m, Fig. 1. A

In said drawings, a indicates the type-bar segment. This comprises, preferably, a single integral piece of metal adapted to be attached to the bed-plate or frame of the typewriting machine in any suitable manner. At

the front part of said segment the same is provided with a raised curved rib a, which is a quadrant or more or less than a quarter-circle and which is provided with a series of transverse saw-cuts which radiate from apoint on the cylinder Where the type is adapt ed to strike. In said saw-cuts and held in place by the arms or plates a formed by said saw-cuts, are arranged type-bars b. For the purpose of clear illustration but one of such bars is shown in the figures; but it may be un derstood that each of said cuts receives its bar I), so that a series of such bars is provided. Each of said bars has at its free end an enlargement b, which provides a slideway for the type 19 on which slideway the type may be adjust-ably secured, as hereinafter more fully described. At the front of said curved rib a are formed grooves into which fulcruinal wires 0 d are arranged one above the other and held in said grooves in any suitable manner, said wires being curved in plan in correspondence with the rib, as indicated in Fig. 3.

On the upper side of said wires 0 the several type-bars Z) are pivotally fulcrumed. On the lower wire d are fulcrumed curved levers e, each of which is connected by a curved link f with its type-bar b at a point near its fulcrum c, the lever e and link f extending closely around the fulcrumal or pivotal end of the typebar, so that but little room or space is occupied thereby. These said levers are in turn connected by links g with the finger-key levers or bars h, fulcrumed at i, so that when the finger-keyj is depressed the curved mul tiplying-lever e is thrown upward and forward and the type-bar b is driven at its free end forward and downward against the platen or cylinder is.

The peculiar construction and arrangements of levers permits avery short type bar or lever to be employed, so that a pressure on the key j will effect a very prompt action of said type-bar.

The free end of the type-bar b is limited in its movement away from the platen or cylinder by means of a cushioned stay Z, the said type-bars being each raised automatically to a normal engagement with said stay by a spring m, adapted to press upon the fingerbar 71. to effect such raising. The tension of I00 the spring may be increased by means of an adjusting-screw n.

To secure an easy adjustment of the type 19 upon the type-bars, the latter at their enlarged ends I) are slotted,'as indicated in Fig. 4, said slots being undercut, as shown, and the type is dovetailed in correspondence with the shape of the slot in cross-section. The walls of the enlargement closely hu g the type and hold the same firmly, so that the hammer action or impact on the cylinder will not throw the type out of alinement, but permits an easy adjustment of the type by endwise tapping with a hammer or the lik The operation of the device will be understood from the above description, and further description is deemed to be unnecessary.

Having thus described the invention, what I claim as new isv 1. In a type-writer, the combination of a type-bar support having transverse saw-cuts, type-bars fulcrnmed one in the upper part of each saw-cut, levers fulcrnmed one in each saw-cut and beneath a type-bar, said levers projecting rearward and having their endsv pivoted to the type-bars, a stop, and fingerkeys connected to said levers, substantially as set forth.

' 2. In a type-writer, the combination of a type-bar support having a curved rib with transverse saw-cuts, type-bars having their extremities fulcrnmed in said saw-cuts, levers fulcrnmed one in each saw-cut beneath a type-bar and curving rearward around the fulcrumal end of said type-bar andbeing pivoted to the type-bar forward of its fulcrum,

and finger-keys connected to said levers, substantially as set forth.

3. In a type-Writer, the combination of a type-bar support having a curved rib with transverse saw-cuts, type-bars fulcrnmed at their extremities in said saw-cuts levers fulcrumed in said saw-cuts beneath the fulcrums of the type-bars and curving rearward and upward around the fulcrnmed ends of the type-bars, said levers being each jointed intermediate of its ends and pivoted at its upper end to a type-bar forward of its fulcrum, and finger-key bars linked to said levers, substantially as set forth.

4:. In a type-writer, the combination of a type-bar support having a curved rib with transverse saw-cuts forming radial plates, said plates having upper and lower perforations, upper and lower fulcrumal rods passed through the plates, type-bars fulcrumed in the saw-cuts on said upper rod, curved levers similarly fulcrnmed on the lower rods and each connected at its other end to the typebar in the same saw-cut, and finger-keys connected to said levers, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 7th day of May, 1900.

WILLIAM S. PERRY.

Witnesses:

CHARLES H. PELL, C. B. PITNEY. 

